<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Main</title>
    <style>
        nav {
            background-color: #333;
            padding: 10px;
        }
        nav a {
            color: white;
            text-decoration: none;
            padding: 8px 16px;
        }
        nav a:hover {
            background-color: #555;
        }
    </style>
</head>
<body>
<nav>
    <a href="game.html">游戏</a>
</nav>
<h2>Main!</h2>
</body>
</html>